TWI547610B - Loom - Google Patents

Description

Loom

The present invention relates to a heald for a loom for forming a warp opening for a weft insertion of a loom, a heald frame member, and a loom using the same.

In the case of fabricating a woven fabric by a loom, in order to form a warp yarn opening, a plurality of looms are mounted on a plurality of heald frames, and the warp insertion holes provided in the looms of the loom pass through the warp yarns. In the weaving process, at least one pair of heald frames are operated to move up and down in opposite directions, and the warp yarn opening operation is performed, and the warp yarns are sequentially fed while the weft is being fed.

In the conventional weaving machine, the metal plate was punched, a predetermined mounting hole was formed at both ends, and a warp insertion hole was formed in the center portion. The metal looms have a fixed thickness and a small unevenness, and have high durability. However, since they are made of metal, a large force is required for forming, and since the mass is also large, the driving energy in a large amount of weaving is also required. . Further, when the warp yarn passes through the warp insertion hole of the weaving machine, the warp yarn is easily rubbed and fluffed, or the slurry of the warp-knitted warp yarn easily falls off due to friction with the inner edge portion of the warp insertion hole. In addition, the short-length specifications of the metal looms for the looms of 30 cm or less are usually 0.25 mm to 0.30 mm.

Therefore, as disclosed in Patent Document 1, a weaving machine for a loom formed of a synthetic resin material has been proposed. The weaving machine is formed by injection molding a synthetic resin material or by a synthetic resin plate, and has an engaging hole at both end portions of the heald body and a warp insertion hole having a predetermined size at the center portion.

Prior technical literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open No. 2011-162921

Patent Document 2: Japanese Patent Publication No. 55-15218

However, the loom for a loom disclosed in Patent Document 1 is for weaving a wide weave such as a water jet loom, and the rotation speed of the loom for the loom is, for example, about 1000 rpm. On the other hand, in the case of a weaving machine such as a fastener tape of a slide fastener, the width of the fastener tape as a woven fabric is narrow, so that the weft insertion distance is short, and the rotational speed of the weaving machine is, for example, about 1800 rpm. high speed. Therefore, the resin woven weave is a resin material that cannot withstand the inertial force acting during the reciprocating motion, and has a problem in durability. In addition, when the thickness is increased in order to increase the durability, the number of healds per loom per unit width of the heald frame is reduced, and in order to increase the number of healds for the loom, the heald frame must be enlarged. The weaving machine is large. In addition, in general, the length of the weaving machine for weaving a wide-width woven fabric is about 30 cm in length, but if it is used for a high-speed rotary loom for narrow-width belt-shaped fabric, the weaving machine can not withstand Due to the inertial force of the reciprocating motion generated when it is driven, there is a tendency that the weaving machine is easily broken.

The present invention has been made in view of the above prior art, and its object is to provide A woven loom for a looms, a heald frame, and a loom using the same, which are capable of woven a narrow strip of fabric at a high speed and have high durability and space efficiency.

The present invention is a heald for a loom which has a warp insertion hole through which a warp yarn for forming a strip-shaped narrow web is formed at a central portion and which is formed into a long thin plate shape, and has a heald mounting at both end portions. The mounting hole through which the mounting rod of the frame is inserted has a thickness of 0.35 mm to 0.60 mm, and the whole is formed of synthetic resin. The above-mentioned weaving machine has a length of, for example, 140 mm to 160 mm.

Further, the present invention is a loom including a heald frame member in which 18 to 22 pieces of the above-mentioned loom are arranged. When the width of the fastener tape is set to x mm and the distance from the weaving opening to the frontmost mounting frame member is L mm, the interval between the warp yarns at both ends of the heald frame member is preferably 0.0167 Lx or less.

Further, the present invention is a heald frame member comprising a heald frame member to which a heald for a loom is attached, the loom having a warp insertion hole for inserting a warp of a strip-shaped narrow fabric in a central portion The frame portion of the heald frame member facing the mounting bar is provided with a heald member that suppresses the play in the vertical direction of the heald of the loom. The heald pressing member is provided on a frame portion above the heald frame member.

According to the heald, the heald frame member, and the loom for a loom according to the present invention, it is possible to efficiently weave a narrow web such as a zipper tape with the loom space and the loom speed of the metal heald. In addition, by using a resin weaving machine weave, the overall quality of the heald frame member is reduced, and the heald frame can be reduced in strength and weight. Therefore, the driving power can be suppressed, and the driving energy or noise can be drastically reduced.

In addition, the resin weaving machine will not appear as a metal composite. Powder, no pollution of fabric caused by metal powder. Even if the weaving machine is made of resin, the wear of the warp yarn does not suddenly cause the defect of the woven fabric, and the weaving machine can be reliably replaced before the defect occurs. In addition, since the vibration of the weaving machine is suppressed by the wetting of the material, the noise during weaving is reduced, and the durability of the weaving machine is also improved.

10‧‧‧Weaving machine

12a, 12b‧‧‧ mounting holes

14‧‧‧ warp insertion holes

14a‧‧‧R

20‧‧‧Full installation frame

20a‧‧‧ Frame Department

22‧‧‧Installation rod

22a‧‧‧Resection

22b‧‧‧ front end

24‧‧‧ warp

26‧‧‧Comprehensive pressing parts

28‧‧‧ screws

30‧‧‧Full installation frame parts

32‧‧‧ zipper belt

34‧‧‧筘

34a‧‧‧Weaving

Xx‧‧‧ interval

x‧‧‧Width

L‧‧‧ distance

Fig. 1 is a partial perspective view showing a use state of a welt for a loom according to an embodiment of the present invention.

Fig. 2 is a plan view of the weft for the loom of the embodiment.

Fig. 3 is a partially enlarged front elevational view of the heald for the loom of the embodiment.

Fig. 4 is a partially enlarged plan view showing an end portion of the welt of the loom according to the embodiment.

Fig. 5 is a partially enlarged plan view showing a central portion of the weft knitting machine according to the embodiment.

Fig. 6 is a partially enlarged front elevational view showing the heald attachment frame member to which the weft for the loom of the embodiment is attached.

Fig. 7 is a cross-sectional view taken along line A-A of Fig. 6;

Fig. 8 is a schematic plan view of a weaving machine to a heald frame member of a loom to which the weaving machine for a loom according to the embodiment is attached.

Hereinafter, an embodiment of the present invention will be described based on the drawings. The real The loom 10 for a loom according to the embodiment is formed by punching with a synthetic resin sheet. The synthetic resin comprises polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), and contains 10% by mass to 30% by mass of polyethylene naphthalate. It is preferably 15% by mass to 25% by mass, more preferably 18% by mass to 20% by mass.

The loom 10 is formed symmetrically in the longitudinal direction and formed into a flat elongated shape. The one end portion 10a and the other end portion 10b are formed with elongated mounting holes 12a1 and mounting holes 12b that are inserted into the mounting rods 22 of the heald mounting frame 20 to be described later. The holing machine 10 is formed into a uniform thickness as a whole, and is formed to have a thickness of 0.35 mm to 0.60 mm, preferably 0.40 mm to 0.55 mm, more preferably 0.45 mm to 0.50 mm. The center portion 10c of the weaving machine 10 is formed with a pair of torsion portions 10d that twist a portion including a predetermined interval of the center portion 10c in the same direction. For example, in the case of the weaving machine harness 10 having a total length of about 150 mm, the interval between the twisted portions 10d is about 20 mm, and can be appropriately set in the range of 15 mm to 30 mm. The torsion angle of the torsion portion 10d is 10 to 35, preferably 15 to 30, more preferably 20 to 25.

A warp insertion hole 14 through which the warp yarn 24 is inserted is formed at the center of the loom 10 and the center of the torsion portion 10d. The warp insertion hole 14 is formed in a rectangular shape in which the R portion 14a that rounds the corner is formed, and is formed into a substantially square through hole when viewed from the perspective of twisting the torsion portion 10d. The radius of curvature of the R portion 14a of the corner portion 14a of the warp insertion hole 14 is larger than the diameter of the warp yarn 24, and fluffing due to friction is less likely to occur in the warp yarn 24.

As shown in Fig. 6, the attachment of the looms 10 to the heald frame member 30 is such that the mounting rod 22 integrally formed in the metal frame of the stainless steel (stainless) is fitted to the looms 10 The hole 12a is performed. Mounting rod 22 is The upper and lower sides of the inside of the heald mounting frame 20 are provided in parallel with the upper and lower frame portions 20a, and the cut-off portion 22a is formed at the center portion of the mounting rod 22, and the pair of mounting rods 22 in the cantilever state face each other with the front end portion 22b thereof. Ground setting. The mounting rod (not shown) on the lower side of the heald frame 20 is similarly fitted to the mounting hole 12b of the weaving machine 10, and the predetermined weaving machine 10 is attached to the full frame 20 at regular intervals.

Here, the width of the attachment rod 22 is slightly narrower than the length of the attachment hole 12a and the attachment hole 12b, and is formed so as not to generate a large vibration during the weaving operation. Further, in the frame portion 20a above the heald frame 20, the heald member 26 is fixed by the screw 28, and the play when the loom 10 is attached to the heald frame 20 is eliminated. Similarly, the heald pressing member 26 may be attached to the frame portion below the heald mounting frame 20. Thereby, the vibration of the weft insert 10 below is suppressed.

Next, the action of the weaving machine harness 10 and the heald frame member 30 of the embodiment will be described. First, the attachment of the heald frame member 30 to the loom will be described. The heald frame members 30 of the weaving machine 10 in which a predetermined number are attached are attached to the loom at least in a pair, and are moved back and forth in opposite directions to each other, and a shed which is an opening into which the weft insertion is inserted is formed between the warp yarns 24. Usually, eight warp yarns 24 are inserted into the heald frame member 30, eight heald frame members 30 are attached to the loom, and a zipper tape of a zipper having a width of about 12 mm to 17 mm is woven. Therefore, when, for example, 60 looms 10 are used, when the thickness is 0.4 mm, only the looms 10 of the looms are formed to have a thickness of 24 mm, and a width wider than the width of the woven fabric is required to be wide. Further, at the position of the weft insertion and the beating, the two ends of the warp yarn 24 are formed to have a substantially heald width, and in the beating position for the warp yarn 24, it is preferable that the warp yarns 24 at both ends of the heald frame member 30 are mutually exhausted. Probably close to each other. Therefore, in order to convey the warp yarns 24 at both ends of the 60 warp yarns at an angle close to each other as close as possible At the weft insertion position, it is necessary to separate the gap between the heald frame member 30 and the weft insertion position, which leads to an increase in the size of the loom, which is not preferable. Therefore, the loom 10 for the loom is preferably as thin as possible, and in the case of the conventional metal heald, sufficient strength cannot be obtained. Therefore, the short size of 30 cm or less is usually 0.25 mm to 0.30 mm.

In the case of a conventional wide fabric looms, the loom itself is large, and the use of the metal healds does not cause the problem of the thickness of the loom 10 and the warp yarn 24 being conveyed. However, in the case of weaving a narrow web of a zipper tape such as a zipper, the weft insertion distance of the weft yarn is also short, so that the reciprocating motion of the heald frame member 30 can be speeded up, and in terms of weaving efficiency, the weaving machine The rotational speed is also significantly higher than the wide fabric. If the rotational speed of the loom is increased, the inertial force acting on the reciprocating loom 10 is required to increase the rotational speed and require higher strength.

Therefore, in the case of the woven loom 10 for a resin, there is a problem in that the distance to the weft insertion position is preferably as small as possible, and a certain strength is required for the speed of the loom. A certain thickness.

Therefore, in the present invention, the thickness of the resin-made woven fabric 10 which is capable of maintaining the strength of the looms and which can maintain the high-speed rotation is 0.35 mm to 0.60 mm, preferably 0.40 mm to 0.55 mm. More preferably, it is 0.45 mm to 0.50 mm. Further, the length of the heald 10 for a looms made of resin is shortened to 160 mm to 140 mm, preferably 155 mm to 145 mm, and more preferably 150 mm. Further, as a resin material, as a polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), it contains 10% by mass to 30% by mass of polyethylene naphthalate, If the amount is preferably 15% by mass to 25% by mass, more preferably 18% by mass to 20% by mass, a balance between cost and material strength is obtained. Thereby, the transport distance of the warp yarn 24 and the speed of the loom can be used in the same manner as the metal heald, and the resin loom can be used. The weaving action of the zipper tape is performed by the heald 10.

Generally, in the case of weaving a narrow-width fabric such as a zipper tape, it is preferable to insert 18 to 22 pieces of the one-piece mounting frame member 30 in terms of the constitution of the cloth woven fabric and the efficiency of the weaving operation. Preferably, the looms 10 are arranged in a manner of 20 warp yarns 24. Further, the heald frame member 30 in which the 20 warp yarns 24 are inserted is a frame for a plain weave fabric, and the other frame is a frame for a twill fabric or a satin fabric. In addition, the width of the usual zipper tape is about 12 mm to 17 mm. As described above, it is known that the warp yarns 24 at both ends are as parallel as possible to each other at the position of beating, specifically, as shown in FIG. In the arrangement relationship, the width of the fastener tape 32 is set to x mm, and the interval between the warp yarns 24 at both ends of the frontmost mounting frame member 30 is set to αx mm, and the weaving opening 34a of the beating is performed by the weir 34 When the distance of the heald frame member 30 of the front row is set to Lmm, it is preferably 1 ≦ α ≦ 0.0167 L. The reason for this is that when α is equal to or higher than the above upper limit, an adverse effect such as an operation that hinders front reed or a damage to warp yarn 24 occurs. Therefore, for example, in the case of L=70 mm, if x=12 mm, the upper limit width is 14.0 mm, and if x=17 mm, the upper limit width is 19.9 mm. In the case where the heald frame member 30 is designed so that the weaving width is the narrowest x=12 mm, if the heald frame member 30 is arranged as a looms 10 for the plain weave, each 0.7 mm is used. The upper limit of the thickness of the heald 10 for the loom that is simply arranged. However, of course, it is necessary to have a play between the looms 10 for the looms. Therefore, when the zipper tape for the zipper is used, the thickness of the looms 10 for the looms is preferably 0.6 mm or less.

According to the heald 10 for a loom, the heald frame member 30, and the loom according to the embodiment of the present invention described above, it is possible to efficiently weave a narrow web such as a fastener tape with the same weaving space and the loom speed of the metal heald. And by using the tree In the grease looms 10, the overall quality of the heald frame member 30 is reduced, and the heald frame 20 can be reduced in strength and weight. Therefore, the driving power can be suppressed, and the driving energy or noise can be drastically reduced. In addition, the resin-made weaving machine 10 does not have metal powder as in the case of metal, and does not cause contamination of the fabric due to the metal powder. Even if the wearer 10 for the looms made of resin has a wear due to the passage of the warp yarns 24, the woven fabric is not suddenly broken, and the looms 10 can be reliably replaced before the defects occur. Further, since the vibration of the weaving machine weave 10 is suppressed by the weir pressing member 26, the noise during weaving is reduced, and the durability of the weaving machine weave 10 is also improved.

In addition, the weaving machine, the heald frame member, and the loom using the same are not limited to the above-described embodiment, and the portion including the predetermined interval of the center portion may be twisted in the same direction without forming the central portion of the loom. In the pair of torsion portions, the warp insertion holes may not be quadrangular in which the corner portions are formed in an arc shape and the pair of sides are positioned in the horizontal direction. Further, as the type of the resin, a resin material other than the above may be used as long as a certain strength can be maintained. In addition, it may be formed by resin molding by injection molding or the like in addition to being formed by punching with a synthetic resin sheet.

10‧‧‧Weaving machine

10b‧‧‧End

10c‧‧‧Central Department

10d‧‧‧Reversal

12b‧‧‧ mounting hole

14‧‧‧ warp insertion holes

14a‧‧‧R

22‧‧‧Installation rod

24‧‧‧ warp

Claims (4)

A looms comprising: 18 to 22 looms, each looms being formed by a warp insertion hole (14) having a warp yarn (24) for forming a strip-shaped narrow fabric at a central portion, and forming The vertically long thin plate-shaped looms (10) and the heald frame member (30) have a heald mounting frame (20), and the 18 to 22 looms are arranged, and the looms are provided at both ends. The mounting holes (12a, 12b) through which the mounting rods (22) of the above-mentioned heald mounting frame (20) are inserted have a thickness of 0.35 mm to 0.60 mm and are integrally formed of synthetic resin, wherein the strip-shaped narrow woven fabric is a zipper tape When the width of the zipper tape is set to x mm and the distance from the woven opening to the frontmost mounting frame member (30) of the front row is L mm, the warp yarns at both ends of the heald frame member (30) are The interval between 24) is 0.0167 Lx or less. The loom according to claim 1, wherein the length of the weaving machine (10) is 140 mm to 160 mm. The loom according to claim 1, wherein the frame portion (20a) facing the mounting rod (22) of the heald frame member (30) is provided with a vertical direction for suppressing the welt (10) of the loom. The comprehensive pressing of the material (26). The loom according to claim 3, wherein the heald pressing member (26) is provided on a frame portion (20a) above the heald frame member (30).